extremely

adverb

ex·​treme·​ly ik-ˈstrēm-lē 

1

: in an extreme manner

2

: to an extreme extent

Synonyms of extremely

• very
• incredibly
• terribly
• highly
• too
• so
• badly
• damned
• severely
• damn
• really
• super
• desperately
• intensely
• seriously
• far
• exceptionally

Examples of extremely in a Sentence

an extremely hot day

Recent Examples on the Web

Yet some companies are already using AI to cut costs, increase revenue, improve customer experience and solve problems that would have been extremely difficult to tackle in other ways. — Bernard Marr, Forbes.com, 10 Aug. 2026

Indonesia’s Meteorological, Climatological and Geophysical Agency said strong winds and extremely dry vegetation are accelerating the spread of fires. — ABC News, 9 Aug. 2026

He may have been born in Cordoba, northern Argentina, but after five years at the Tottenham Hotspur Stadium, the notion of Romero being allowed to head the four miles south to the Emirates feels extremely problematic at best, sacrilegious at worst. — Tim Spiers, New York Times, 9 Aug. 2026

However, the man behind the wheel of the Kia was driving at extremely dangerous speeds — as high as 136 mph in a zone where the speed limit is 55, state police said. — Adam Harrington, CBS News, 9 Aug. 2026

Word History

First Known Use

1509, in the meaning defined at sense 1

Phrases Containing extremely

• extremely high frequency
• extremely low frequency

Rhymes for extremely

• seemly
• unseemly